Home / 103,385.26-154,859.92-47,272.55

Finding the Fourth Proportional to 103,385.26, 154,859.92 and 47,272.55

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Solution

The fourth proportional to 103,385.26, 154,859.92 and 47,272.55 is: 70,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,385.26 : 154,859.92 = 47,272.55 : x
  2. Step 2: Convert to fraction form
    103,385.26/154,859.92 = 47,272.55/x
  3. Step 3: Cross multiply
    103,385.26x = 154,859.92 × 47,272.55
  4. Step 4: Simplify right side
    103,385.26x = 7,320,622,418.72
  5. Step 5: Solve for x
    x = 7,320,622,418.72/103,385.26
  6. Step 6: Final answer
    x = 70,809.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.